KR20230057413A - Polymer blend of aliphatic polyketone, acrylonitrile butadiene styrene, and flame retardant - Google Patents

Abstract

Embodiments of the present disclosure include greater than 45 wt % and less than 90 wt % aliphatic polyketone; greater than or equal to 7.5 wt % and less than or equal to 40 wt % of acrylonitrile butadiene styrene (ABS); and greater than 0 wt% and up to 25 wt% flame retardant.

Description

Polymer blend of aliphatic polyketone, acrylonitrile butadiene styrene, and flame retardant

priority claim

[0001] This application claims the benefit of US Provisional Patent Application Serial No. 63/071,833, filed August 28, 2020, having Attorney Docket No. 12020008, which is hereby incorporated by reference in its entirety.

technical field

[0002] Embodiments of the present disclosure relate generally to polymer blends, and in particular to polymer blends of aliphatic polyketones, acrylonitrile butadiene styrene (ABS), and flame retardants with improved chemical resistance and flame retardancy.

[0003] Polymer blends of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) are widely used, such as in healthcare, automotive and electronic applications, due to their relatively high heat resistance and combination of tensile strength and toughness. Although ABS improves processability and flexibility of polymer blends, its high glass transition temperature of approximately 95 to 105° C. limits the ability to use the blends in high temperature applications. To balance the ABS, PC is added to increase the heat resistance of the polymer blend.

[0004] Although ABS imparts its resistance to aqueous solutions to ABS and PC blends, ABS and PC blends have relatively poor chemical resistance, particularly to organic solvents, hydrocarbons, and selected alcohols, and are used in health care, automotive and electronics applications. It may not be sufficient for certain applications. In addition, materials used in these applications may require a high level of flame retardancy in addition to chemical resistance.

[0005] Accordingly, there is a continuing need for improved polymer blends that exhibit the desired chemical resistance and flame retardancy while providing improved heat resistance and sufficient tensile and flexural strength and stiffness for the aforementioned applications.

[0006] Embodiments of the present disclosure relate to polymeric blends of aliphatic polyketones, ABS and flame retardants that meet desired chemical resistance and flame retardancy while providing improved heat resistance and sufficient tensile and flexural strength and stiffness. In addition, these polymer blends can exhibit sufficient impact strength.

[0007] According to one embodiment, a polymer blend is provided. The polymer blend comprises at least 45 wt% and no more than 90 wt% of an aliphatic polyketone; 7.5 wt% or more and 40 wt% or less of acrylonitrile butadiene styrene; and greater than 0 wt % and up to 25 wt % of a flame retardant.

[0008] Additional features and advantages of the embodiments described herein will be set forth in the detailed description that follows, and will become readily apparent to those skilled in the art from, in part, the description and implementations described herein, including the description and claims that follow. It will be recognized by doing an example.

1 is a photograph of a sample bar formed using an exemplary formulation according to an embodiment described herein in a strain jig.

[0010] now a polymer blend, in particular at least 45 wt% and up to 90 wt% aliphatic polyketone; 7.5 wt% or more and 40 wt% or less of acrylonitrile butadiene styrene (ABS); and polymer blends comprising greater than 0 wt% and up to 25 wt% flame retardant will be discussed in detail in various embodiments.

[0011] The disclosure of the present invention should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey its subject matter to those skilled in the art.

[0012] Justice

[0013] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the disclosure herein is for the purpose of describing specific embodiments only and is not intended to be limiting.

Ranges may be expressed herein as “about” one particular value, and/or “about” another particular value. When such a range is expressed, another embodiment includes one particular value and/or another particular value. Similarly, when values are expressed as approximations, by use of a preceding "about", it will be understood that the particular value forms another embodiment. It will be further understood that the endpoints of each range are significant both in relation to the other endpoints and independently of the other endpoints.

[0015] In no way is any method described herein to be construed as requiring its steps to be performed in a particular order or requiring a particular orientation for any device, unless expressly stated otherwise. Thus, it is not a claim or claim that a method claim does not actually recite the order in which steps must be followed, or any apparatus claim does not actually recite an order or direction for individual components, or that the steps are to be limited to a particular order. Unless specifically stated otherwise in the description, or unless a specific order or orientation for elements of a device is recited, in no way is it intended to infer order and orientation in any way. This applies to any possible non-explicit basis for interpretation, including: matters of logic relating to the arrangement of steps, workflow, sequence of components or orientation of components; general meaning derived from grammatical organization or punctuation; and the number or type of implementations described in the specification.

[0016] As used in the specification and appended claims, the singular forms "a" and "an" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Thus, for example, reference to an element includes embodiments having two or more such elements unless the context clearly dictates otherwise.

[0017] The terms "0 wt %,""free" and "substantially free" when used to describe the weight and/or absence of a particular component in a polymer blend indicate that the component is not intentionally added to the polymer blend. means However, the polymer blend may contain trace components as contaminants or tramps in amounts less than 0.05 wt%.

[0018] The weight average molecular weight (Mw) as described herein is measured using conventional gel permeation chromatography.

[0019] As used herein, the term "wt%" refers to wt% by weight of the polymer blend unless otherwise stated.

[0020] As used herein, the term "heat deflection temperature" refers to the temperature at which an article formed from a polymer blend described herein will deform, as measured according to ASTM D648 at a 0.45 MPa load.

[0021] The term "tensile modulus" or "tensile stiffness" as used herein refers to the ratio of stress along an axis to strain along that axis as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s. .

[0022] As used herein, the term "yield" refers to the point on the stress-strain curve that indicates the limit of elastic behavior and the onset of plastic behavior.

[0023] As used herein, the term "yield tensile strength" refers to the maximum that a material can withstand while being stretched before it begins to permanently change shape, as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s. refers to stress.

[0024] The term "tensile elongation at yield" as used herein refers to the ratio between the increased length at yield and the initial length as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s.

[0025] The term "tensile strength at break" as used herein refers to the maximum stress that a material can withstand while being stretched before breaking, as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s.

[0026] The term "tensile elongation at break" as used herein refers to the ratio between the increased length after break and the initial length as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s.

[0027] The term "flexural modulus" or "flexural stiffness" as used herein refers to the ratio of stress to strain in flexural strain as measured according to ASTM D790 at 23°C and a strain of 0.21 mm/s.

[0028] The term "flexural strength" as used herein refers to the maximum bending stress that can be applied to a material before it yields, as measured according to ASTM D790 at 23°C and a strain of 0.21 mm/s.

[0029] As used herein, the term "sufficient tensile and flexural strength and stiffness" includes a tensile modulus of 1600 MPa or greater, a tensile strength at yield of 35 MPa or greater, a tensile strength at break of 35 MPa or greater, a flexural modulus of 1900 MPa or greater, and 5 MPa or greater. refers to flexural strength.

[0030] The term "melt flow rate" as used herein refers to the ability of a material melt to flow under pressure as measured according to ASTM D1238 at a given temperature and at a pressure applied by a given weight.

[0031] As used herein, the term "Notched Izod Impact strength" refers to the resistance to failure of an article formed from a polymer blend described herein as measured according to ASTM D256 at 23°C and 2.75 J. It refers to the kinetic energy required to initiate and continue breaking.

[0032] The term "peak energy" as used herein refers to the energy required to puncture a material by impact with a falling dart as measured by Instrumented Impact Testing according to ASTM D3763.

[0033] As used herein, the term "sufficient impact strength" refers to a notched Izod impact strength of 200 J/m or greater and a peak energy of 30 J or greater.

[0034] As used herein, the term "ductile failure" refers to extensive plastic deformation prior to cracking, wherein the crack undergoes further elongation unless the applied stress increases, as indicated after the crack is subjected to instrumented impact testing according to ASTM D3763. It is stable in that it resists The term "brittle fracture" as used herein refers to a relatively small plastic deformation, and the crack is unstable in that the crack propagates rapidly without an increase in applied stress as seen after undergoing an instrumented impact test according to ASTM D3763. A ductile fracture is preferred over a brittle fracture.

[0035] As used herein, the term "specific gravity" refers to the ratio of the density of a material to the density of water, measured according to ASTM D792 at 23 °C.

[0036] The term "density" as used herein refers to the mass per unit volume of a material as measured according to ASTM D792 at 23°C.

[0037] As used herein, the term "decomposition temperature" refers to the temperature at which a material chemically decomposes, as measured by thermogravimetric analysis.

[0038] As used herein, the term "particle size distribution D50" means that 50% of the particles have a diameter less than a given size.

[0039] As used herein, the term "particle size distribution D95" means that 95% of the particles have a diameter less than a given size.

[0040] The term "Shore D hardness" as used herein refers to the hardness of a material as measured according to ASTM D2240.

[0041] The term "flammability rating" as used herein refers to the comparative combustion characteristics of a solid-plastic material at a given thickness measured according to the UL 94 standard test procedure.

[0042] For the UL 94 V-0, V-1 and V-2 classifications, 10 specimens with dimensions of 125 mm x 13 mm are tested per thickness. Specimens are tested after conditioning for 48 hours at 23° C. and 50% relative humidity. Specimens are mounted perpendicular to the long axis. The specimen is supported so that its lower end is 10 mm above the Bunsen burner tube. A blue 20 mm high flame is applied to the center of the lower edge of the specimen for 10 seconds. If burning ceases within 30 seconds, flames are reapplied for an additional 10 seconds. If the specimen does drop particles, they should be allowed to fall on a layer of untreated surgical cotton placed 300 mm below the specimen. A rating of “V-0” is (A) not having any specimen burning with a flame burn for more than 10 seconds after application of the test flame; (B) does not have a total flame burning time greater than 50 seconds for 10 flame applications; (C) without any specimen burning with a flame or scorching combustion up to the holding clamp; (D) without any specimen dropping flame particles to ignite the dry absorbent surgical cotton located 300 mm below the test specimen; (E) Requires not to have any specimens with glowing burning sustained for more than 30 seconds after the second removal of the test flame. A rating of "V-1" is (A) not having any specimen burning with flame burning for more than 30 seconds after application of the test flame; (B) does not have a total flame burn time exceeding 250 seconds for 10 flame applications; (C) without any specimen burning with a flame or scorching combustion up to the holding clamp; (D) without any specimen dropping flame particles to ignite the dry absorbent surgical cotton located 300 mm below the test specimen; (E) Requires not to have any specimens with glowing burning sustained for more than 60 seconds after the second removal of the test flame. A rating of “V-2” is (A) not having any specimen burning with a flame burn for more than 30 seconds after application of the test flame; (B) does not have a total flame burn time exceeding 250 seconds for 10 flame applications; (C) without any specimen burning with a flame or scorching combustion up to the holding clamp; (D) it is acceptable to have a specimen drop flame particles that burn only briefly, some of which ignite a dry absorbent surgical cotton placed 300 mm below the test specimen; (E) Requires not to have any specimens with glowing burning sustained for more than 60 seconds after the second removal of the test flame.

[0043] For the UL 94 5VA and 5VB classifications, 5 specimens (i.e. bars) with dimensions of 125 mm x 13 mm and 3 specimens (i.e. plaques) with dimensions of 150 mm x 150 mm were used per thickness. It is tested. Specimens are tested after conditioning for 48 hours at 23° C. and 50% relative humidity. The specimen is mounted with the long axis perpendicular. A 125 mm full tall Bunsen burner flame with a 40 mm blue inner cone is applied to the center of the bottom surface of the specimen at an angle of 20° from vertical so that the tip of the blue cone touches the specimen. Flames apply for 5 seconds and dissipate for 5 seconds. The operation is repeated until the test flame has been applied to the specimen 5 times. A rating of "5VA" means that (A) the bar specimen has a UL-94 V-0 or V-1 classification; (B) not having any specimen burn with flame burning for more than 60 seconds after the fifth flame; (C) without any specimen dropping flame particles that ignite the dry absorbent surgical cotton located 300 mm below the specimen; (D) Requires not to have any specimen exhibiting burn-through (holes). A rating of "5VB" means that (A) the bar specimen has a UL-94 V-9 or V-1 classification; (B) not having any specimen burn with flame burning for more than 60 seconds after the fifth flame; (C) without any specimen dropping flame particles that ignite the dry absorbent surgical cotton located 300 mm below the specimen; (D) Requires having specimens showing burn-throughs (holes).

[0044] The term "acid number" as used herein refers to the mass of potassium hydroxide (KOH) in milligrams (mg) required to neutralize one gram of a chemical, as measured according to ASTM D3644.

[0045] The term "glass transition temperature" as used herein refers to the temperature region at which a polymer transitions from a hard glassy material to a soft rubbery material as measured by dynamic mechanical analysis according to ASTM D4440.

[0046] The amount (wt%) of P ₂ O ₅ and CaO in the hydroxyapatite stabilizer is determined by X-ray fluorescence (XRF).

[0047] As used herein, the term "loss on ignition" refers to the mass loss of a combustion residue each time it is heated to 800° C. in an air/oxygen atmosphere as measured according to ASTM D7348.

[0048] As mentioned above, conventional ABS and PC blends have the required heat resistance and tensile stiffness (i.e., a heat deflection temperature of about 90 °C and about 2700 MPa) required for a wide range of applications including healthcare, automotive, and electronic applications. of tensile modulus). PC is a rigid, amorphous thermoplastic that imparts heat resistance to polymer blends. ABS is also an amorphous thermoplastic, but has lower tensile and flexural stiffness than PC. Thus, ABS reduces tensile and flexural stiffness, improves flexibility, and improves processability of conventional ABS and PC blends. However, conventional ABS and PC blends have relatively low chemical resistance, especially to organic solvents, hydrocarbons, and selected alcohols, and may not be sufficient for certain applications in healthcare, automotive, and electronics. In addition, materials used in these applications may require a high level of flame retardancy in addition to chemical resistance.

[0049] Disclosed herein are polymer blends that alleviate the aforementioned problems. Specifically, the polymer blends disclosed herein include a blend of an aliphatic polyketone, ABS, and a flame retardant, which results in a chemical and flame retardant polymer blend with improved heat resistance and sufficient tensile and flexural strength and stiffness. Aliphatic polyketones are semi-crystalline thermoplastics that, similar to PC, increase the heat resistance of polymer blends. Unlike its function in conventional ABS and PC blends, ABS imparts tensile and flexural stiffness to aliphatic polyketones and ABS blends. Without wishing to be bound by theory, it is believed that the resistance of aliphatic polyketones to non-aqueous solutions and the resistance of ABS to aqueous solutions results in improved overall chemical resistance of the aliphatic polyketone and ABS polymer blends. It is also believed that the semi-crystalline structure of aliphatic polyketones results in improved chemical resistance compared to the amorphous structure of PC. Additionally, with the addition of a flame retardant, the chemically resistant aliphatic polyketone and ABS polymer blend exhibits flame retardancy. In addition, a rubber-containing impact modifier may be added to provide sufficient impact strength.

[0050] The polymer blends disclosed herein can generally be described as comprising an aliphatic polyketone, acrylonitrile butadiene styrene (ABS), and a flame retardant.

[0051] aliphatic polyketone

[0052] As explained above, the aliphatic polyketone increases the heat resistance of the polymer blend. The combination of an aliphatic polyketone with ABS results in a polymer blend with improved chemical resistance compared to conventional ABS and PC blends. Without wishing to be bound by theory, it is believed that this improved chemical resistance results from the resistance of aliphatic polyketones to non-aqueous solutions and the resistance of ABS to aqueous solutions. It is also believed that the semi-crystalline structure of aliphatic polyketones results in improved chemical resistance compared to the amorphous structure of PC.

[0053] Thus, in an embodiment, the aliphatic polyketone is included in an amount of at least 45 wt% such that the aliphatic polyketone can increase heat resistance and elongation at yield and contribute to the overall chemical resistance of the polymer blend. In an embodiment, the amount of aliphatic polyketone can be limited (e.g., 90 wt% or less) and the tensile and flexural stiffness of the polymer blend is at a desired amount (e.g., 1600 MPa or more, respectively) due to the presence of the aliphatic polyketone. and 1900 MPa or more) can be balanced with ABS so that it does not decrease below. In embodiments, the amount of aliphatic polyketone in the polymer blend can be greater than 45 wt%, greater than 50 wt%, greater than 55 wt%, greater than 60 wt%, greater than 65 wt%, or even greater than 68 wt%. In an embodiment, the amount of aliphatic polyketone may be 90 wt% or less, 85 wt% or less, 80 wt% or less, 75 wt% or less, or even 70 wt% or less. In an embodiment, the amount of aliphatic polyketone in the polymer blend is greater than or equal to 45 wt% and less than or equal to 90 wt%, greater than or equal to 45 wt% and less than or equal to 85 wt%, greater than or equal to 45 wt% and less than or equal to 80 wt%, greater than or equal to 45 wt% and less than or equal to 75 wt% Less than or equal to 45 wt% and less than or equal to 70 wt%, greater than or equal to 50 wt% and less than or equal to 90 wt%, greater than or equal to 50 wt% and less than or equal to 85 wt%, greater than or equal to 50 wt% and less than or equal to 80 wt%, greater than or equal to 50 wt% and less than or equal to 75 wt% Less than or equal to 50 wt% and less than or equal to 70 wt%, greater than or equal to 55 wt% and less than or equal to 90 wt%, greater than or equal to 55 wt% and less than or equal to 85 wt%, greater than or equal to 55 wt% and less than or equal to 80 wt%, greater than or equal to 55 wt% and less than or equal to 75 wt% Less than or equal to 55 wt% and less than or equal to 70 wt%, greater than or equal to 60 wt% and less than or equal to 90 wt%, greater than or equal to 60 wt% and less than or equal to 85 wt%, greater than or equal to 60 wt% and less than or equal to 80 wt%, greater than or equal to 60 wt% and less than or equal to 75 wt% 60 wt% or more and 70 wt% or less, 65 wt% or more and 90 wt% or less, 65 wt% or more and 85 wt% or less, 65 wt% or more and 80 wt% or less, 65 wt% or more and 75 wt% or less, 65 wt% or more and 70 wt% or less, 68 wt% or more and 90 wt% or less, 68 wt% or more and 85 wt% or less, 68 wt% or more and 80 wt% or less, 68 wt% or more and 75 wt% or less, or even greater than or equal to 68 wt% and less than or equal to 70 wt%, or any and all subranges formed from any of these endpoints.

[0054] In an embodiment, the aliphatic polyketone has at least 1 g/10 min, at least 10 g/10 min, at least 20 g/10 min, 30 g/10 as measured according to ASTM D1238 at 240°C and a weight of 2.16 kg. min or more, or even 40 g/10 min or more. While not wishing to be bound by theory, aliphatic polyketones with higher melt flow rates (e.g., greater than 90 g/10 min) improve the flow of polymer blends, while aliphatic polyketones with higher melt flow rates make ABS adequate. dispersibility, which can negatively affect the chemical resistance and impact strength of the polymer blend. Thus, in an embodiment, the aliphatic polyketone has a 90 g/10 min or less, 80 g/10 min or less, 60 g/10 min or less, 40 g/10 min as measured according to ASTM D1238 at 240° C. and a weight of 2.16 kg. or less, or even less than 20 g/10 min. In an embodiment, the aliphatic polyketone has greater than or equal to 1 g/10 min and less than or equal to 90 g/10 min, greater than or equal to 1 g/10 min and less than or equal to 80 g/10 min, as measured according to ASTM D1238 at 240° C. and a weight of 2.16 kg; 1 g/10 min or more and 60 g/10 min or less, 1 g/10 min or more and 40 g/10 min or less, 1 g/10 min or more and 20 g/10 min or less, 10 g/10 min or more and 90 g/10 min or less, 10 g/10 min or more and 80 g/10 min or less, 10 g/10 min or more and 60 g/10 min or less, 10 g/10 min or more and 40 g/10 min or less, 10 g /10 min or more and 20 g/10 min or less, 20 g/10 min or more and 90 g/10 min or less, 20 g/10 min or more and 80 g/10 min or less, 20 g/10 min or more and 60 g/ 10 minutes or less, 20 g/10 minutes or more and 40 g/10 minutes or less, 30 g/10 minutes or more and 90 g/10 minutes or less, 30 g/10 minutes or more and 80 g/10 minutes or less, 30 g/10 min and less than 60 g/10 min, more than 30 g/10 min and less than 40 g/10 min, more than 40 g/10 min and less than 90 g/10 min, more than 40 g/10 min and less than 80 g/10 min or less, or even greater than or equal to 40 g/10 min and less than or equal to 60 g/10 min, or any and all subranges formed from any of these endpoints. In an embodiment, the aliphatic polyketone is at least two different aliphatic polyketones (e.g., one with a relatively high melt flow rate and one with a relatively low melt flow rate) to achieve a moderate melt flow rate (e.g., 60 g/10 min or greater). having a flow rate) may be included.

[0055] In an embodiment, the aliphatic polyketone may have a heat deflection temperature of greater than 180°C or even greater than 190°C. In an embodiment, the aliphatic polyketone may have a heat deflection temperature of less than or equal to 225°C or even less than or equal to 210°C. In an embodiment, the aliphatic polyketone is 180 °C or more and 225 °C or less, 180 °C or more and 210 °C or less, 190 °C or more and 225 °C or less, or even 190 °C or more and 210 °C or less, or from any of these endpoints. It can have any and all subranges of heat deflection temperatures formed.

[0056] In an embodiment, the aliphatic polyketone may have a tensile modulus greater than 1300 MPa or even greater than 1400 MPa. In an embodiment, the aliphatic polyketone may have a tensile modulus of less than or equal to 1800 MPa or even less than or equal to 1700 MPa. In an embodiment, the aliphatic polyketone is greater than or equal to 1300 MPa and less than or equal to 1800 MPa, greater than or equal to 1300 MPa and less than or equal to 1700 MPa, greater than or equal to 1400 MPa and less than or equal to 1800 MPa, or even greater than or equal to 1400 MPa and less than or equal to 1700 MPa, or from any of these endpoints. It can have any and all subranges of tensile modulus formed.

[0057] In an embodiment, the aliphatic polyketone may have a tensile strength at yield greater than or equal to 45 MPa or even greater than or equal to 55 MPa. In an embodiment, the aliphatic polyketone may have a tensile strength at yield of less than or equal to 75 MPa or even less than or equal to 65 MPa. In an embodiment, the aliphatic polyketone is greater than or equal to 45 MPa and less than or equal to 75 MPa, greater than or equal to 45 MPa and less than or equal to 65 MPa, greater than or equal to 55 MPa and less than or equal to 75 MPa, or even greater than or equal to 55 MPa and less than or equal to 65 MPa, or from any of these endpoints. It can have any and all subranges of yield tensile strength formed.

[0058] In an embodiment, the aliphatic polyketone may have a tensile elongation at yield greater than 15% or even greater than 20%. In an embodiment, the aliphatic polyketone may have a tensile elongation at yield of 30% or less or even 25% or less. In an embodiment, the aliphatic polyketone is greater than or equal to 15% and less than or equal to 30%, greater than or equal to 15% and less than or equal to 25%, greater than or equal to 20% and less than or equal to 30%, or even greater than or equal to 20% and less than or equal to 25%, or from any of these endpoints. It can have any and all subranges of tensile elongation at yield formed.

[0059] In an embodiment, the aliphatic polyketone may have a flexural modulus greater than 1200 MPa or even greater than 1300 MPa. In an embodiment, the aliphatic polyketone can have a flexural modulus of less than or equal to 1700 MPa or even less than or equal to 1600 MPa. In an embodiment, the aliphatic polyketone is greater than or equal to 1200 MPa and less than or equal to 1700 MPa, greater than or equal to 1200 MPa and less than or equal to 1600 MPa, greater than or equal to 1300 MPa and less than or equal to 1700 MPa, or even greater than or equal to 1300 MPa and less than or equal to 1600 MPa, or from any of these endpoints. It can have any and all subranges of flexural modulus formed.

[0060] In an embodiment, the aliphatic polyketone may have a flexural strength greater than 40 MPa or even greater than 50 MPa. In an embodiment, the aliphatic polyketone may have a flexural strength of 70 MPa or less or even 60 MPa or less. In an embodiment, the aliphatic polyketone is greater than or equal to 40 MPa and less than or equal to 70 MPa, greater than or equal to 40 MPa and less than or equal to 60 MPa, greater than or equal to 50 MPa and less than or equal to 70 MPa, or even greater than or equal to 50 MPa and less than or equal to 60 MPa, or from any of these endpoints. can have any and all subranges of flexural strength formed.

[0061] In an embodiment, the aliphatic polyketone can have a notched Izod impact strength of greater than 75 J/m, greater than 100 J/m, greater than 150 J/m, or even greater than 200 J/m. In an embodiment, the aliphatic polyketone can have a notched Izod impact strength of 250 J/m or less or even 225 J/m or less. In embodiments, the aliphatic polyketone is greater than or equal to 75 J/m and less than or equal to 250 J/m, greater than or equal to 75 J/m and less than or equal to 225 J/m, greater than or equal to 100 J/m and less than or equal to 250 J/m, greater than or equal to 100 J/m and 225 J/m or less, 150 J/m or more and 250 J/m or less, 150 J/m or more and 225 J/m or less, 200 J/m or more and 250 J/m or less, or even 200 J/m or more and 225 J/m or less, or any and all subranges formed from any of these endpoints.

[0062] In an embodiment, the aliphatic polyketone may have a specific gravity greater than 1.15 or even greater than 1.2. In an embodiment, the aliphatic polyketone may have a specific gravity of less than 1.3 or even less than 1.25. In an embodiment, the aliphatic polyketone is greater than or equal to 1.15 and less than or equal to 1.3, greater than or equal to 1.15 and less than or equal to 1.25, greater than or equal to 1.2 and less than or equal to 1.3, or even greater than or equal to 1.2 and less than or equal to 1.25, or any and all subranges formed from any of these endpoints. can have importance.

[0063] Suitable commercial embodiments of the aliphatic polyketones are grades M330, M630 containing various additives as indicated by "A", "F", "S" or others, or no additives as indicated by "P". and the POKETONE brand from Hyosung, such as the M930. The polymer blends described herein can be formulated with a powdered grade of aliphatic polyketone, e.g., POKETONE M630P, in addition to another grade of aliphatic polyketone, e.g., POKETONE M630A, to ensure easier dosing of additional components of the blend. can include Table 1 shows the specific characteristics of the POKETONE M330A, M630A and M930A.

[0064] Table 1

[0065] Acrylonitrile Butadiene Styrene (ABS)

[0066] As mentioned above, ABS increases the tensile and flexural stiffness of polymer blends, and the combination of ABS and aliphatic polyketones results in polymer blends with improved chemical resistance compared to conventional ABS and PC blends. . Without wishing to be bound by theory, it is believed that this improved chemical resistance results from the resistance of aliphatic polyketones to non-aqueous solutions and the resistance of ABS to aqueous solutions.

[0067] Thus, in an embodiment, ABS is included in an amount of 7.5 wt% or greater such that ABS can increase tensile and flexural stiffness and contribute to the overall chemical resistance of the polymer blend. In embodiments, the amount of ABS can be limited (eg, 40 wt % or less) so that the heat resistance is not reduced below a desired amount (eg, a heat deflection temperature of 100° C. or higher) due to the presence of the ABS. In embodiments, the amount of ABS in the polymer blend can be 7.5 wt% or greater, 10 wt% or greater, 14 wt% or greater, 18 wt% or greater, 20 wt% or greater, 24 wt% or greater, or even 28 wt% or greater. In embodiments, the amount of ABS in the polymer blend may be 40 wt % or less, 35 wt % or less, or even 30 wt % or less. In embodiments, the amount of ABS in the polymer blend is greater than or equal to 7.5 wt% and less than or equal to 40 wt%, greater than or equal to 7.5 wt% and less than or equal to 35 wt%, greater than or equal to 7.5 wt% and less than or equal to 30 wt%, greater than or equal to 10 wt% and less than or equal to 40 wt%, 10 wt% or more and 35 wt% or less, 10 wt% or more and 30 wt% or less, 14 wt% or more and 40 wt% or less, 14 wt% or more and 35 wt% or less, 14 wt% or more and 30 wt% or less, 18 wt% or more and 40 wt% or less, 18 wt% or more and 35 wt% or less, 18 wt% or more and 30 wt% or less, 20 wt% or more and 40 wt% or less, 20 wt% or more and 35 wt% or less, 20 wt% or more and 30 wt% or less, 24 wt% or more and 40 wt% or less, 24 wt% or more and 35 wt% or less, 24 wt% or more and 30 wt% or less, 28 wt% or more and 40 wt% or less, 28 wt% or more and 35 wt% or less, or even 28 wt% or more and 30 wt% or less, or any and all subranges formed from any of these endpoints.

[0068] In an embodiment, the ABS may include emulsion ABS produced through an emulsion polymerization process. In embodiments, the ABS may include bulk ABS, which is a purer ABS produced with minimal additives by bulk polymerization.

[0069] In an embodiment, the ABS may have a melt flow rate of at least 1 g/10 min, at least 3 g/10 min, or even at least 5 g/10 min as measured according to ASTM D1238 at 230° C. and a weight of 3.8 kg. there is. In an embodiment, the ABS may have a melt flow rate of less than or equal to 20 g/10 min or even less than or equal to 10 g/10 min as measured according to ASTM D1238 at 230° C. and a weight of 3.8 kg. In an embodiment, the ABS is greater than or equal to 1 g/10 min and less than or equal to 20 g/10 min, greater than or equal to 1 g/10 min and less than or equal to 10 g/min, 3 g/min as measured according to ASTM D1238 at 230° C. and a weight of 3.8 kg. 10 min or more and 20 g/10 min or less, 3 g/10 min or more and 10 g/10 min or less, 5 g/10 min or more and 20 g/10 min or less, or even 5 g/10 min or more and 10 g /10 min or less, or any and all subranges formed from any of these endpoints.

[0070] In an embodiment, the ABS may have a tensile modulus greater than 2000 MPa or even greater than 2500 MPa. In embodiments, ABS may have a tensile modulus of less than or equal to 3500 MPa or even less than or equal to 3000 MPa. In embodiments, the ABS is greater than or equal to 2000 MPa and less than or equal to 3500 MPa, greater than or equal to 2000 MPa and less than or equal to 3000 MPa, greater than or equal to 2500 MPa and less than or equal to 3500 MPa, or even greater than or equal to 2500 MPa and less than or equal to 3000 MPa, or any formed from any of these endpoints. and all subranges of tensile modulus.

[0071] In an embodiment, the ABS may have a tensile strength at yield of 30 MPa or greater, 35 MPa or greater, or even 40 MPa or greater. In embodiments, the ABS may have a tensile strength at yield of less than or equal to 50 MPa or even less than or equal to 45 MPa. In embodiments, the ABS is greater than or equal to 30 MPa and less than or equal to 50 MPa, greater than or equal to 30 MPa and less than or equal to 45 MPa, greater than or equal to 35 MPa and less than or equal to 50 MPa, greater than or equal to 35 MPa and less than or equal to 45 MPa, greater than or equal to 40 MPa and less than or equal to 50 MPa, or even 40 MPa. and greater than or equal to 45 MPa, or any and all subranges of yield tensile strength formed from any of these endpoints.

[0072] In an embodiment, the ABS may have a tensile elongation at yield greater than 1% or even greater than 1.5%. In embodiments, ABS may have a tensile elongation at yield of less than or equal to 5% or even less than or equal to 4%. In embodiments, the ABS is greater than or equal to 1% and less than or equal to 5%, greater than or equal to 1% and less than or equal to 4%, greater than or equal to 1.5% and less than or equal to 5%, or even greater than or equal to 1.5% and less than or equal to 4%, or any formed from any of these endpoints. and all subranges of tensile elongation at yield.

[0073] In an embodiment, the ABS may have a tensile elongation at break greater than 5% or even greater than 10%. In embodiments, ABS may have a tensile elongation at break of 40% or less or even 35% or less. In embodiments, the ABS is greater than or equal to 5% and less than or equal to 40%, greater than or equal to 5% and less than or equal to 35%, greater than or equal to 10% and less than or equal to 40%, or even greater than or equal to 10% and less than or equal to 35%, or any formed from any of these endpoints. and all subranges of tensile elongation at break.

[0074] In an embodiment, the ABS may have a flexural modulus greater than 2400 MPa or even greater than 2500 MPa. In embodiments, ABS may have a flexural modulus of less than or equal to 2800 MPa or even less than or equal to 2700 MPa. In embodiments, the ABS is greater than or equal to 2400 MPa and less than or equal to 2800 MPa, greater than or equal to 2400 MPa and less than or equal to 2700 MPa, greater than or equal to 2500 MPa and less than or equal to 2800 MPa, or even greater than or equal to 2500 MPa and less than or equal to 2700 MPa, or any formed from any of these endpoints. and all subranges of the flexural modulus.

[0075] In an embodiment, the ABS may have a flexural strength greater than or equal to 60 MPa or even greater than or equal to 70 MPa. In embodiments, the ABS may have a flexural strength of less than or equal to 90 MPa or even less than or equal to 80 MPa. In an embodiment, the ABS is greater than or equal to 60 MPa and less than or equal to 90 MPa, greater than or equal to 60 MPa and less than or equal to 80 MPa, greater than or equal to 70 MPa and less than or equal to 90 MPa, or even greater than or equal to 70 MPa and less than or equal to 80 MPa, or any formed from any of these endpoints. and all subranges of flexural strength.

[0076] In an embodiment, the ABS may have a notched Izod impact strength of greater than 200 J/m, greater than 300 J/m, or even greater than 350 J/m. In embodiments, the ABS may have a notched Izod impact strength of 500 J/m or less or even 400 J/m or less. In embodiments, the ABS is greater than or equal to 250 J/m and less than or equal to 500 J/m, greater than or equal to 250 J/m and less than or equal to 400 J/m, greater than or equal to 300 J/m and less than or equal to 500 J/m, greater than or equal to 300 J/m and less than or equal to 400 J/m. /m or less, greater than or equal to 350 J/m and less than or equal to 500 J/m, or even greater than or equal to 350 J/m and less than or equal to 400 J/m, or any and all subranges of notched Izod impact formed from any of these endpoints. can have strength.

[0077] Suitable commercial embodiments of ABS are available under the LUSTRAN brand from INEOS Styrolution, such as grades 348 and 433, and the MAGNUM brand from Trinseo, such as grade 8391 MED. Table 2 shows specific characteristics of LUSTRAN 348 and 433 and MAGNUM 8391 MED.

[0078] Table 2

[0079] flame retardant

[0080] In addition to improved chemical resistance, the polymer blends described herein exhibit flame retardancy. For example, flame retardant aliphatic polyketone and ABS blends may be desirable in healthcare (eg, medical device housings and enclosures), automotive, electronics, and food production (eg, belt systems) applications. Accordingly, flame retardants are included in the polymer blends described herein to increase the flame retardancy of the polymer blends.

[0081] In an embodiment, the amount of flame retardant in the polymer blend may be greater than 0 wt%, greater than 2.5 wt%, greater than 5 wt%, or even greater than 10 wt%. In embodiments, the amount of flame retardant in the polymer blend can be 25 wt% or less, 20 wt% or less, 17.5 wt% or less, 15 wt% or less, or even 12.5 wt% or less. In embodiments, the amount of flame retardant in the polymer blend is greater than 0 wt% and less than or equal to 25 wt%, greater than 0 wt% and less than or equal to 20 wt%, greater than 0 wt% and less than or equal to 17.5 wt%, greater than 0 wt% and less than or equal to 15 wt%, greater than 0 wt% and less than or equal to 12.5 wt%, greater than or equal to 2.5 wt% and less than or equal to 25 wt%, greater than or equal to 2.5 wt% and less than or equal to 20 wt%, greater than or equal to 2.5 wt% and less than or equal to 17.5 wt%, greater than or equal to 2.5 wt% and less than or equal to 15 wt%, 2.5 wt% or more and 12.5 wt% or less, 5 wt% or more and 17.5 wt% or less, 5 wt% or more and 15 wt% or less, 5 wt% or more and 12.5 wt% or less, 10 wt% or more and 17.5 wt% or less, 10 wt% or more and 15 wt% or less, or even 10 wt% or more and 12.5 wt% or less, or any and all subranges formed from any of these endpoints.

[0082] In an embodiment, the flame retardant is an inorganic phosphorus containing salt, phosphinate, organic phosphinate, phosphate compound (e.g., organic phosphate ester, aryl phosphate, halogen-containing phosphate, and oligo-phosphate), polyphosphate (eg, melamine polyphosphate), polyphosphonates (and corresponding copolymers), halogenated aromatics, polymeric halogenated compounds, antimony trioxide, or combinations thereof.

[0083] In an embodiment, the flame retardant may have a density greater than or equal to 1.2 g/cm ³ or even greater than or equal to 1.3 g/cm ³ . In embodiments, the flame retardant may have a density of 2.3 g/cm ³ or less, 2.0 g/cm ³ or less, or even 1.7 g/cm ³ or less. In an embodiment, the flame retardant has a concentration of 1.2 g/cm ³ or greater and 2.3 g/cm ³ or less, 1.2 g/cm ³ or greater and 2.0 g/cm ³ or less, 1.2 g/cm ^{3 or} greater and 1.7 g/cm ³ or less, 1.3 g /cm ³ or more and 2.3 g/cm ³ or less, 1.3 g/cm ³ or more and 2.0 g/cm ^{3 or} less, or even 1.3 g/cm ³ or more and 1.7 g/cm ³ or less, or from any of these endpoints It can have any and all subranges of density formed.

[0084] In an embodiment, the flame retardant can have a decomposition temperature of 250°C or higher, 275°C or higher, or even 300°C or higher.

[0085] In an embodiment, the flame retardant can have a particle size distribution D50 of 1 μm or greater, 10 μm or greater, or even 20 μm or greater. In an embodiment, the flame retardant may have a particle size distribution D50 of less than or equal to 60 μm or even less than or equal to 50 μm. In embodiments, the flame retardant has a particle size of greater than 1 μm and less than 60 μm, greater than 1 μm and less than 50 μm, greater than 10 μm and less than 60 μm, greater than 10 μm and less than 50 μm, greater than 20 μm and less than 60 μm, or even 20 μm. It may have a particle size distribution D50 of greater than or equal to 50 μm, or any and all subranges formed from any of these endpoints.

[0086] Suitable commercial embodiments of flame retardants include the EXOLIT brand from Clariant, such as grades OP 935 and OP 1230; FYROLFLEX brand from ICL Industrial Products such as grade SOL-DP; JLS brand from HangZhou such as grade PNA-350; and the BC brand from Lanxess, such as grade 58. Table 3 shows specific properties of EXOLIT OP 935, EXOLIT OP1230, FYROFLEX SOL-DP, JLS PNA-350, and BC-58.

[0087] Table 3

[0088] polymer blend

[0089] As explained above, aliphatic polyketones increase the heat resistance of the polymer blend, but can reduce the tensile and flexural stiffness of the polymer blend. While ABS increases the tensile and flexural stiffness of the polymer blend, ABS may decrease the heat resistance of the polymer blend. Thus, in achieving a polymer blend with improved chemical resistance, the amount of aliphatic polyketone must be balanced with the amount of ABS to maintain improved heat resistance and achieve the desired tensile and flexural stiffness. In an embodiment, the weight ratio of aliphatic polyketone to ABS is 2:1 to 6:1, 2:1 to 5:1, 2:1 to 4:1, 2:1 to 3:1, 2:1 to 2.5: 1, 2:1 to 2.3:1, 2.3:1 to 6:1, 2.3:1 to 5:1, 2.3:1 to 4:1, 2.3:1 to 3:1, 2.3:1 to 2.5:1, 2.5:1 to 6:1, 2.5:1 to 5:1, 2.5:1 to 4:1, 2.5:1 to 3:1, 3:1 to 6:1, 3:1 to 5:1, 3: 1 to 4:1, 4:1 to 6:1, 4:1 to 5:1, or even 5:1 to 6:1, or any and all subranges formed from any of these endpoints. .

[0090] The aliphatic polyketone increases the heat resistance of the polymer blend as evidenced by the heat deflection temperature of the polymer blend. A higher heat deflection temperature indicates an increased ability of the polymer blend to resist distortion under a given load at elevated temperature. Certain applications may require heat deflection temperatures (eg, greater than 100° C.). In embodiments, the polymer blend may have a heat deflection temperature of greater than or equal to 100°C or even greater than or equal to 110°C. In embodiments, the polymer blend may have a heat deflection temperature of 175°C or less, 150°C or less, or even 125°C or less. In embodiments, the polymer blend has a temperature of greater than or equal to 100 °C and less than or equal to 175 °C, greater than or equal to 100 °C and less than or equal to 150 °C, greater than or equal to 100 °C and less than or equal to 125 °C, greater than or equal to 110 °C and less than or equal to 175 °C, greater than or equal to 110 °C and less than or equal to 150 °C, or even 110 It may have a heat deflection temperature of greater than or equal to 125 °C and less than or equal to 125 °C, or any and all subranges formed from any of these endpoints.

[0091] ABS increases the tensile and flexural stiffness of the polymer blend as evidenced by the tensile modulus of the polymer blend. Higher tensile and flexural moduli indicate increased stiffness and thus correlate with stronger polymer blends. In an embodiment, the polymer blend may have a tensile modulus greater than 1600 MPa or even greater than 1700 MPa. In an embodiment, the polymer blend can have a tensile modulus of 2500 MPa or less, 2250 MPa or less, or even 2000 MPa or less. In an embodiment, the polymer blend has at least 1600 MPa and up to 2500 MPa, at least 1600 MPa and up to 2250 MPa, at least 1600 MPa and up to 2000 MPa, at least 1700 MPa and up to 2500 MPa, at least 1700 MPa and up to 2250 MPa, or even 1700 It may have a tensile modulus of greater than or equal to MPa and less than or equal to 2000 MPa, or any and all subranges formed from any of these endpoints. In an embodiment, the polymer blend may have a flexural modulus greater than 1900 MPa or even greater than 2000 MPa. In an embodiment, the polymer blend may have a flexural modulus of less than or equal to 2750 MPa or even less than or equal to 2500 MPa. In an embodiment, the polymer blend is at least 1900 MPa and not more than 2750 MPa, not less than 1900 MPa and not more than 2500 MPa, not less than 2000 MPa and not more than 2750 MPa, or even not less than 2000 MPa and not more than 2500 MPa, or formed from any of these endpoints. It may have any and all subranges of flexural modulus.

[0092] In an embodiment, the polymer blend may have a tensile strength at yield of 35 MPa or greater, 40 MPa or greater, or even 42 MPa or greater. In an embodiment, the polymer blend can have a tensile strength at yield of 65 MPa or less, 60 MPa or less, 55 MPa or less, 50 MPa or less, or even 48 MPa or less. In an embodiment, the polymer blend has at least 35 MPa and up to 65 MPa, at least 35 MPa and up to 60 MPa, at least 35 MPa and up to 55 MPa, at least 35 MPa and up to 50 MPa, at least 35 MPa and up to 48 MPa, at least 40 MPa. and 65 MPa or less, 40 MPa or more and 60 MPa or less, 40 MPa or more and 55 MPa or less, 40 MPa or more and 50 MPa or less, 40 MPa or more and 48 MPa or less, 42 MPa or more and 65 MPa or less, 42 MPa or more and 60 have a tensile strength at yield of less than or equal to 42 MPa and less than or equal to 55 MPa, greater than or equal to 42 MPa and less than or equal to 50 MPa, or even greater than or equal to 42 MPa and less than or equal to 48 MPa, or any and all subranges formed from any of these endpoints. can

[0093] In an embodiment, the polymer blend may have a tensile elongation at yield greater than 8%, greater than 10%, or even greater than 12%. In embodiments, the polymer blend may have a tensile elongation at yield of 30% or less, 25% or less, 20% or less, or even 18% or less. In embodiments, the polymer blend comprises greater than 8% and less than 30%, greater than 8% and less than 25%, greater than 8% and less than 20%, greater than 8% and less than 18%, greater than 10% and less than 30%, greater than 10% and 25% or less, 10% or more and 20% or less, 10% or more and 18% or less, 12% or more and 30% or less, 12% or more and 25% or less, 12% or more and 20% or less, or even 12% or more and a tensile elongation at yield of 18% or less, or any and all subranges formed from any of these endpoints. In embodiments, the polymer blend may not exhibit a defined tensile elongation at yield.

[0094] In an embodiment, the polymer blend can have a tensile strength at break of 35 MPa or greater, 40 MPa or greater, or even 42 MPa or greater. In an embodiment, the polymer blend can have a tensile strength at break of 65 MPa or less, 60 MPa or less, 55 MPa or less, 50 MPa or less, or even 48 MPa or less. In an embodiment, the polymer blend has at least 35 MPa and up to 65 MPa, at least 35 MPa and up to 60 MPa, at least 35 MPa and up to 55 MPa, at least 35 MPa and up to 50 MPa, at least 35 MPa and up to 48 MPa, at least 40 MPa. and 65 MPa or less, 40 MPa or more and 60 MPa or less, 40 MPa or more and 55 MPa or less, 40 MPa or more and 50 MPa or less, 40 MPa or more and 48 MPa or less, 42 MPa or more and 65 MPa or less, 42 MPa or more and 60 have a tensile strength at break of less than or equal to 42 MPa and less than or equal to 55 MPa, greater than or equal to 42 MPa and less than or equal to 50 MPa, or even greater than or equal to 42 MPa and less than or equal to 48 MPa, or any and all subranges formed from any of these endpoints. can

[0095] In an embodiment, the polymer blend may have a tensile elongation at break of greater than 8%, greater than 15%, or even greater than 20%. In embodiments, the polymer blend can have a tensile elongation at break of 200% or less, 150% or less, or even 100% or less. In embodiments, the polymer blend is greater than or equal to 8% and less than or equal to 200%, greater than or equal to 8% and less than or equal to 150%, greater than or equal to 8% and less than or equal to 100%, greater than or equal to 15% and less than or equal to 200%, greater than or equal to 15% and less than or equal to 150%, greater than or equal to 15%. and 100% or less, 20% or more and 200% or less, 20% or more and 150% or less, or even 20% or more and 100% or less, or any and all subranges of tensile elongation at break formed from any of these endpoints. can have

[0096] In an embodiment, the polymer blend may have a flexural strength greater than or equal to 50 MPa or even greater than or equal to 55 MPa. In an embodiment, the polymer blend may have a flexural strength of 85 MPa or less or even 80 MPa or less. In an embodiment, the polymer blend is formed from at least 50 MPa and up to 85 MPa, at least 50 MPa and up to 80 MPa, at least 55 MPa and up to 85 MPa, or even at least 55 MPa and up to 80 MPa, or any of these endpoints. It may have any and all subranges of flexural strength.

[0097] In an embodiment, the polymer blend can have a tensile modulus of 1600 MPa or greater, a tensile strength at yield of 35 MPa or greater, a tensile strength at break of 35 MPa or greater, a flexural modulus of 1900 MPa or greater, and a flexural strength of 50 MPa or greater.

[0098] Flame retardants increase the flame retardancy of polymer blends as evidenced by their flammability ratings. In an embodiment, the polymer blend has a flammability rating of V-0 at a thickness of 3 mm as measured according to UL 94. In an embodiment, the polymer blend has a flammability rating of V-1 at a thickness of 1.5 mm as measured according to UL 94. In an embodiment, the polymer blend has a flammability rating of V-0 at a thickness of 1.5 mm as measured according to UL 94. In an embodiment, the polymer blend has a flammability rating of V-1 at a thickness of 0.75 mm as measured according to UL 94. In an embodiment, the polymer blend has a flammability rating of 5VA at a thickness of 3 mm as measured according to UL 94. In an embodiment, the polymer blend has a flammability rating of 5VA at a thickness of 1.5 mm as measured according to UL 94.

[0099] As illustrated in the Examples section below, the aliphatic polyketone, ABS, and flame retardant blends described herein have improved chemical resistance and flame retardancy while providing improved heat resistance and sufficient tensile and flexural strength and stiffness. Thus, aliphatic polyketone, ABS and flame retardant blends may be better suited for certain applications in healthcare, automotive, and electronics where chemical resistance and flame retardancy are desired.

[00100] Hydroxyapatite Stabilizer

[00101] In an embodiment, the polymer blend may further include a hydroxyapatite stabilizer. Without wishing to be bound by theory, in the absence of hydroxyapatite stabilizers, aliphatic polyketones can crosslink themselves, resulting in significant increases in viscosity and consequent processing difficulties. When present in polymer blends, hydroxyapatite stabilizers act as acid scavengers, preventing aliphatic polyketones from self-reacting and cross-linking.

[00102] In an embodiment, the hydroxyapatite stabilizer can include pentacalcium hydroxide tris(orthophosphate), amorphous tricalcium hydroxyphosphate, calcium phosphate hydroxide, or a combination thereof.

[00103] In an embodiment, the amount of hydroxyapatite stabilizer in the polymer blend may be greater than 0 wt%, greater than 0.1 wt%, greater than 0.25 wt%, or even greater than 0.5 wt%. In embodiments, the amount of hydroxyapatite stabilizer in the polymer blend may be 1 wt % or less or even 0.75 wt % or less. In an embodiment, the amount of hydroxyapatite stabilizer in the polymer blend is greater than 0 wt% and less than or equal to 1 wt%, greater than 0 wt% and less than or equal to 0.75 wt%, greater than or equal to 0.25 wt% and less than or equal to 1 wt%, greater than or equal to 0.25 wt% and less than or equal to 0.75 wt%. wt% or less, 0.5 wt% or more and 1 wt% or less, or even 0.5 wt% or more and 0.75 wt% or less, or any and all subranges formed from any of these endpoints.

[00104] In an embodiment, the amount of P ₂ O ₅ in the hydroxyapatite stabilizer may be greater than 30 wt % or even greater than 40 wt %. In embodiments, the amount of P ₂ O ₅ in the hydroxyapatite stabilizer may be 60 wt % or less or even 50 wt % or less. In an embodiment, the amount of P ₂ O ₅ in the hydroxyapatite stabilizer is 30 wt% or more and 60 wt% or less, 30 wt% or more and 50 wt% or less, 40 wt% or more and 60 wt% or less, or even 40 wt% % and up to and including 50 wt %, or any and all subranges formed from any of these endpoints.

[00105] In an embodiment, the amount of CaO in the hydroxyapatite stabilizer may be greater than 40 wt % or even greater than 50 wt %. In embodiments, the amount of CaO in the hydroxyapatite stabilizer may be 70 wt% or less or even 60 wt% or less. In embodiments, the amount of CaO in the hydroxyapatite stabilizer is greater than or equal to 40 wt% and less than or equal to 70 wt%, greater than or equal to 40 wt% and less than or equal to 60 wt%, greater than or equal to 50 wt% and less than or equal to 70 wt%, or even greater than or equal to 50 wt% and up to 60 wt%, or any and all subranges formed from any of these endpoints.

[00106] In an embodiment, the hydroxyapatite stabilizer may have a particle size D50 of greater than or equal to 1 μm or even greater than or equal to 2 μm. In an embodiment, the hydroxyapatite stabilizer may have a particle size distribution D50 of 10 μm or less or even 5 μm or less. In an embodiment, the hydroxyapatite stabilizer is greater than or equal to 1 μm and less than or equal to 10 μm, greater than or equal to 1 μm and less than or equal to 5 μm, greater than or equal to 2 μm and less than or equal to 10 μm, or even greater than or equal to 2 μm and less than or equal to 5 μm, or any of these endpoints. It may have any and all subranges of particle size D50 formed from the endpoints.

[00107] In an embodiment, the hydroxyapatite stabilizer may have a loss on ignition greater than 2% or even greater than 4%. In embodiments, the hydroxyapatite stabilizer may have a loss on ignition of 10% or less or even 5% or less. In an embodiment, the hydroxyapatite stabilizer is present in an amount greater than or equal to 2% and less than or equal to 10%, greater than or equal to 2% and less than or equal to 5%, greater than or equal to 4% and less than or equal to 10%, or even greater than or equal to 4% and less than or equal to 5%, or any of these endpoints. It can have any and all subranges of loss on ignition formed from the endpoints.

[00108] A suitable commercial embodiment of a hydroxyapatite stabilizer is available from Budenheim under the EPSOLUTE brand, for example grade C13-09. Table 4 shows the specific characteristics of EPSOLUTE C13-09.

[00109] Table 4

[00110] rubber-containing impact modifier

[00111] In addition to improved chemical resistance and flame retardancy, it may be desirable for the polymer blends described herein to exhibit sufficient impact strength, as evidenced by a notched Izod impact strength of 200 J/m or greater and a peak energy of 30 J or greater. . Thus, in embodiments, a rubber-containing impact modifier can be added to the aliphatic polyketone and ABS blends described herein to increase the notched Izod impact strength and peak energy of the polymer blend.

[00112] In an embodiment, the amount of rubber-containing impact modifier in the polymer blend may be greater than 0 wt%, greater than 3 wt%, greater than 5 wt%, greater than 7 wt%, or even greater than 10 wt%. In embodiments, the amount of rubber-containing impact modifier may be 20 wt% or less, 18 wt% or less, 16 wt% or less, 14 wt% or less, or even 12 wt% or less. In an embodiment, the amount of rubber-containing impact modifier in the polymer blend is greater than 0 wt% and less than or equal to 20 wt%, greater than 0 wt% and less than or equal to 18 wt%, greater than 0 wt% and less than or equal to 16 wt%, greater than 0 wt% and less than or equal to 14 wt%. wt% or less, greater than 0 wt% and less than or equal to 12 wt%, greater than or equal to 3 wt% and less than or equal to 20 wt%, greater than or equal to 3 wt% and less than or equal to 18 wt%, greater than or equal to 3 wt% and less than or equal to 16 wt%, greater than or equal to 3 wt% and less than or equal to 14 wt% wt% or less, 3 wt% or more and 12 wt% or less, 5 wt% or more and 20 wt% or less, 5 wt% or more and 18 wt% or less, 5 wt% or more and 16 wt% or less, 5 wt% or more and 14 wt% or less wt% or less, 5 wt% or more and 12 wt% or less, 7 wt% or more and 20 wt% or less, 7 wt% or more and 18 wt% or less, 7 wt% or more and 16 wt% or less, 7 wt% or more and 14 wt% or less wt% or less, 7 wt% or more and 12 wt% or less, 10 wt% or more and 20 wt% or less, 10 wt% or more and 18 wt% or less, 10 wt% or more and 16 wt% or less, 10 wt% or more and 14 wt% or more wt% or less, or even greater than or equal to 10 wt% and less than or equal to 12 wt%, or any and all subranges formed from any of these endpoints.

[00113] In an embodiment, the rubber-containing impact modifier may include another ABS, methyl methacrylate butadiene styrene (MBS), acrylonitrile styrene acrylate (ASA), or combinations thereof. In an embodiment, another ABS may be a high rubber (eg, greater than 50 wt % butadiene) ABS.

[00114] In an embodiment, the polymer blend may have a notched Izod impact strength greater than or equal to 200 J/m or even greater than or equal to 300 J/m. In an embodiment, the polymer blend can have a notched Izod impact strength of 600 J/m or less or even 500 J/m or less. In an embodiment, the polymer blend has at least 200 J/m and no more than 600 J/m, at least 200 J/m and no more than 500 J/m, at least 300 J/m and no more than 600 J/m, or even at least 300 J/m. and a notched Izod impact strength of up to 500 J/m, or any and all subranges formed from any of these endpoints.

[00115] In an embodiment, the polymer blend may have an instrumented impact peak energy of 30 J or greater, 32 J or greater, or even 34 J or greater. In an embodiment, the polymer blend may have an instrumented impact peak energy of 50 J or less or even 45 J or less. In embodiments, the polymer blend has a molecular weight of greater than or equal to 30 J and less than or equal to 50 J, greater than or equal to 30 J and less than or equal to 45 J, greater than or equal to 32 J and less than or equal to 50 J, greater than or equal to 32 J and less than or equal to 45 J, greater than or equal to 34 J and less than or equal to 50 J, or even 34 J or less. It may have measured impact peak energies greater than or equal to J and less than or equal to 45 J, or any and all subranges formed from any of these endpoints.

[00116] In an embodiment, the polymer blend may exhibit ductile failure after being subjected to an instrumented impact test according to ASTM D3763.

[00117] In an embodiment, the rubber-containing impact modifier has a melt of at least 1 g/10 min, at least 3 g/10 min, or even at least 5 g/10 min as measured according to ASTM D1238 at 230° C. and a weight of 3.8 kg. can have flow. In embodiments, the rubber-containing impact modifier may have a melt flow rate of less than or equal to 20 g/10 min or even less than or equal to 10 g/10 min as measured according to ASTM D1238 at 230° C. and a weight of 3.8 kg. In an embodiment, the rubber-containing impact modifier has at least 1 g/10 min and at most 20 g/10 min, at least 1 g/10 min and at least 10 g/10 min as measured according to ASTM D1238 at 230° C. and a weight of 3.8 kg. or less, greater than or equal to 3 g/10 min and less than or equal to 20 g/10 min, greater than or equal to 3 g/10 min and less than or equal to 10 g/10 min, greater than or equal to 5 g/10 min and less than or equal to 20 g/10 min, or even 5 g/10 min and up to 10 g/10 min, or any and all subranges formed from any of these endpoints.

[00118] In an embodiment, the rubber-containing impact modifier may have a specific gravity greater than 0.85 or even greater than 0.9. In embodiments, the rubber-containing impact modifier may have a specific gravity of 1.05 or less or even 1 or less. In an embodiment, the rubber-containing impact modifier is greater than or equal to 0.85 and less than or equal to 1.05, greater than or equal to 0.85 and less than or equal to 1, greater than or equal to 0.9 and less than or equal to 1.05, or even greater than or equal to 0.9 and less than or equal to 1, or any and all subterminals formed from any of these endpoints. It can have a range of specific gravity.

[00119] In an embodiment, the rubber-containing impact modifier may have a Shore D hardness of 20 or greater or even 30 or greater. In embodiments, the rubber-containing impact modifier may have a Shore D hardness of 60 or less or even 50 or less. In embodiments, the rubber-containing impact modifier is greater than or equal to 20 and less than or equal to 60, greater than or equal to 20 and less than or equal to 50, greater than or equal to 30 and less than or equal to 60, or even greater than or equal to 30 and less than or equal to 50, or any and all subterminals formed from any of these endpoints. range of Shore D hardness.

[00120] Suitable commercial embodiments of rubber-containing impact modifiers are available from Galata Chemicals under the BLENDEX brand, eg grade 338, and Arkema's CLEARSTRENGTH brand, eg grade E-920. Table 5 shows specific properties of BLENDEX 338 and CLEARSTRENGTH E-920.

[00121] Table 5

[00122] As illustrated in the Examples section below, the addition of a rubber-containing impact modifier to an aliphatic polyketone, ABS, and flame retardant blend as described herein results in a polymer blend that exhibits chemical resistance, flame retardancy, and sufficient impact strength. create

[00123] compatibilizer

[00124] In addition to improved chemical resistance, it may be desirable to compatibilize the components of the polymer blend. Thus, in an embodiment, a compatibilizer may be added to the aliphatic polyketone and ABS blends described herein. Compatibilizers are combined with aliphatic polyketones and/or ABS to alter the heterophase and improve interfacial compatibility of polymer blends as evidenced by increased notched Izod impact strength and changes in glass transition temperature determined by dynamic mechanical analysis. They can react or mix.

[00125] In an embodiment, the amount of compatibilizer in the polymer blend can be greater than 0 wt%, greater than 1 wt%, greater than 1.25 wt%, greater than 2 wt%, or even greater than 2.5 wt%. In embodiments, the amount of compatibilizer in the polymer blend can be 5 wt % or less, 4 wt % or less, or even 3 wt % or less. In an embodiment, the amount of compatibilizer in the polymer blend is greater than 0 wt% and less than or equal to 5 wt%, greater than 0 wt% and less than or equal to 4 wt%, greater than 0 wt% and less than or equal to 3 wt%, greater than or equal to 1 wt% and less than or equal to 5 wt% , 1 wt% or more and 4 wt% or less, 1 wt% or more and 3 wt% or less, 1.25 wt% or more and 5 wt% or less, 1.25 wt% or more and 4 wt% or less, 1.25 wt% or more and 3 wt% or less , 2 wt% or more and 5 wt% or less, 2 wt% or more and 4 wt% or less, 2 wt% or more and 3 wt% or less, 2.5 wt% or more and 5 wt% or less, 2.5 wt% or more and 4 wt% or less , or even greater than or equal to 2.5 wt% and less than or equal to 3 wt%, or any and all subranges formed from any of these endpoints.

[00126] In embodiments, the compatibilizing agent may include styrene maleic anhydride (SMA), aromatic polyketones, maleated-ABS, polystyrene sulfonates, acrylic copolymers, or combinations thereof.

[00127] In an embodiment, the compatibilizer may have a weight average molecular weight (Mw) greater than or equal to 4000 g/mol or even greater than or equal to 5000 g/mol. In an embodiment, the compatibilizer may have a weight average molecular weight (Mw) of less than or equal to 7000 g/mol or even less than or equal to 6000 g/mol. In an embodiment, the compatibilizing agent is greater than or equal to 4000 g/mol and less than or equal to 7000 g/mol, greater than or equal to 4000 g/mol and less than or equal to 6000 g/mol, greater than or equal to 5000 g/mol and less than or equal to 7000 g/mol, or even greater than or equal to 5000 g/mol. and a weight average molecular weight (Mw) of up to 6000 g/mol, or any and all subranges formed from any of these endpoints.

[00128] In an embodiment, the compatibilizer may have an acid number greater than or equal to 400 mg KOH/g or even greater than 450 mg KOH/g. In embodiments, the compatibilizer may have an acid number of less than or equal to 550 mg KOH/g or even less than or equal to 500 mg KOH/g. In an embodiment, the compatibilizer is at least 400 mg KOH/g and at most 550 mg KOH/g, at least 400 mg KOH/g and at most 500 mg KOH/g, at least 450 mg KOH/g and at most 550 mg KOH/g, or It may even have an acid value of 450 mg KOH/g or more and 500 mg KOH/g or less.

[00129] In an embodiment, the compatibilizer may have a glass transition temperature of greater than 100°C or even greater than 125°C. In an embodiment, the compatibilizer may have a glass transition temperature of 175°C or less or even 150°C or less. In embodiments, the compatibilizer is formed from greater than or equal to 100 °C and less than or equal to 175 °C, greater than or equal to 100 °C and less than or equal to 150 °C, greater than or equal to 125 °C and less than or equal to 175 °C, or even greater than or equal to 125 °C and less than or equal to 150 °C, or any of these endpoints. It may have any and all subranges of glass transition temperature.

[00130] Suitable commercial embodiments of compatibilizers include Polyscope's XIBOND brand, eg, Grade 285; Polyram Group's BONDYRAM brand, for example 6000; Mitsubishi Chemical's METBLEN brand; and Lotader's ethylene acrylate based terpolymers. Table 6 shows the specific characteristics of XIBOND 285.

[00131] Table 6

[00132] filler

[00133] In an embodiment, the polymer blend may further include a filler. In embodiments, the filler is an adhesion promoter; biocides; antifog agent; antistatic agents; blowing agents and foaming agents; binders and binding polymers; dispersant; flame retardants and smoke suppressants; impact modifier; initiator; slush; mica; pigments, colorants, and dyes; processing aids; release agent; silanes, titanates, and zirconates; slip agents and anti-blocking agents; stearate; UV absorbers; viscosity modifier; wax; or a combination thereof.

[00134] In an embodiment, the amount of filler in the polymer blend may be greater than 0 wt % or even greater than 0.1 wt %. In embodiments, the amount of filler in the polymer blend may be 1 wt % or less, 0.75 wt % or less, or even 0.5 wt % or less. In an embodiment, the amount of filler in the polymer blend is greater than 0 wt% and less than or equal to 1 wt%, greater than 0 wt% and less than or equal to 0.75 wt%, greater than 0 wt% and less than or equal to 0.5 wt%, greater than or equal to 0.1 wt% and less than or equal to 1 wt%, 0.1 wt% or more and 0.75 wt% or less, or even 0.1 wt% or more and 0.5 wt% or less, or any and all subranges formed from any of these endpoints.

[00135] Suitable commercial embodiments of the filler are available as the IRGAFOS 168 brand from BASF, eg grade 168, and the IRGANOX brand from BASF, eg grades 1098 and 1010.

[00136] process

[00137] In an embodiment, the polymer blends described herein may be prepared in a batch process or a continuous process.

[00138] In an embodiment, the components of the polymer blend may all be added together and mixed in an extruder. In an embodiment, mixing can be a continuous process at an elevated temperature sufficient to melt the polymer matrix (eg, 230° C. to 275° C.). In embodiments, the filler may be added at the feed-throat or by injection or side-feeder downstream. In an embodiment, the output from the extruder is pelletized for subsequent extrusion, molding, thermoforming, forming, calendering, and/or other processing into polymeric articles.

[00139] Example

[00140] Table 7 shows the sources of ingredients for the polymer blends of Examples 1-4.

[00141] Table 7

[00142] Environmental stress cracking (ESCR) method

[00143] A sample bar having the formulation of the examples shown in Tables 9 and 10 is formed. To isolate the effect of deformation from the proposed chemical resistance of the example formulations, the sample bar is placed in a deformation jig and a fixed deformation is applied as shown in FIG. 1 . For the "1% strain control" example, the sample bars were placed under strain for a period of 72 hours. The tensile modulus, tensile strength at yield, and tensile elongation at yield of the modified control sample bars were measured and are presented in Tables 9 and 10. In another embodiment, the sample bar is placed under strain and exposed to the chemical for 72 hours. The sample bar is exposed to the chemical by placing a chemical-soaked gauze pad on the sample bar, leaving the gauze pad on the sample bar for 24 hours, removing the gauze pad, and placing the freshly moistened gauze pad on the sample bar. Repeat this 2 more times. The tensile modulus, tensile strength at yield, and tensile elongation at yield of the chemically exposed sample bars were measured and are presented in Tables 9 and 10. Tensile modulus retention, tensile strength retention at yield, and tensile elongation retention at yield of the chemically exposed sample bars were calculated for the modified control sample bars and are shown in Tables 9 and 10. A formulation is considered to have “good chemical resistance” when the retention of properties for tensile modulus, tensile strength at yield, and retention of tensile elongation properties are between 90% and 110%. A formulation is considered to have “good chemical resistance” when the retention of properties for tensile modulus, tensile strength at yield, and tensile elongation at yield are between 95% and 105%. A formulation is considered to have "poor chemical resistance" if the retention of any property for tensile modulus, tensile strength at yield, and tensile elongation at yield is less than 90% or greater than 110%.

[00144] Table 8 shows the chemicals used in the ESCR test.

[00145] Table 8

[00146] Table 9 shows the formulation (wt%) of Example 1, specific properties, flammability test results, and ESCR results.

[00147] Table 9

[00148] As shown in Table 9, Example 1 (2.3:1 POKETONE M630A (aliphatic polyketone) to LUSRAN 433 (ABS) polymer blend with EXOLIT OP1230 (flame retardant)) had a heat deflection temperature of 111 °C and Excellent chemical resistance to VIREX TB, CAVICIDE and CIDEX OPA. Example 1 has sufficient tensile and flexural strength and stiffness with a tensile modulus of 2196 MPa, tensile strength at yield of 43 MPa, tensile strength at break of 41 MPa, flexural modulus of 2118 MPa, and flexural strength of 69 MPa. In addition to having an increased heat deflection temperature, sufficient tensile and flexural strength and stiffness, and chemical resistance, Example 1 has a V-1 flammability rating at 1.5 mm thickness and a V-0 flammability rating at 3.0 mm thickness.

[00149] As indicated by Example 1 presented in Table 9, the polymer blend of an aliphatic polyketone, ABS and flame retardant exhibits increased chemical resistance and flame retardancy.

[00150] Table 10 shows the formulation (wt%), specific properties, flammability test results, and ESCR results of Examples 2-4.

[00151] Table 10

[00152] Example 2 (2.3:1 POKETONE M630A (aliphatic polyketone) to LUSRAN 348 (ABS) polymer blend with EXOLIT OP1230 (flame retardant)) has a heat deflection temperature of 119° C. It has good chemical resistance to VIREX TB. Example 2 has sufficient tensile and flexural strength and stiffness with a tensile modulus of 1888 MPa, tensile strength at yield of 39 MPa, tensile strength at break of 39 MPa, flexural modulus of 2305 MPa, and flexural strength of 69 MPa.

[00153] Example 3 (3.5:1 POKETONE M630A (aliphatic polyketone) to LUSRAN 348 (ABS) polymer blend with EXOLIT OP1230 (flame retardant)) exhibits a heat deflection temperature of 129° C. and VIREX TB, CAVICIDE and CIDEX OPA It has excellent chemical resistance to Example 3 has sufficient tensile and flexural strength and stiffness with a tensile modulus of 1715 MPa, tensile strength at yield of 41 MPa, tensile strength at break of 40 MPa, flexural modulus of 1993 MPa, and flexural strength of 58 MPa.

[00154] Example 4 (a 4.7:1 POKETONE M630A (aliphatic polyketone) to LUSRAN 348 (ABS) polymer blend with EXOLIT OP1230 (flame retardant)) has a heat deflection temperature of 109° C., excellent for CIDEX OPA Chemical resistance and good chemical resistance to VIREX TB and CAVICIDE. Example 4 has sufficient tensile and flexural strength and stiffness with a tensile modulus of 1643 MPa, tensile strength at yield of 40 MPa, tensile strength at break of 39 MPa, flexural modulus of 1959 MPa, and flexural strength of 54 MPa.

[00155] In addition to having an increased heat deflection temperature, sufficient tensile and flexural strength and stiffness, and chemical resistance, Examples 2-4 have a V-1 flammability rating at 0.75 mm thickness and a V-0 flammability rating at 1.5 mm thickness. grade, and increased flame retardancy as evidenced by the V-0 flammability rating at 3 mm thickness. Example 2 has a 5VA flammability rating at a thickness of 1.5 mm and a thickness of 3 mm.

[00156] As shown in Table 10, as the amount of BLENDEX 338 (rubber-containing impact modifier) is increased from 0 wt% in Example 2 to 8.665 wt% in Example 3 and 12.6225 wt% in Example 4, The notched Izod impact strength increases to 241 J/m in Example 3 and 380 J/m in Example 4. Also, increasing the amount of BLENDEX 338 increases the peak energy from 2 J in Example 2 to 34 J in Example 3 and 31 J in Example 4. And, for 12.6225 wt% of BLENDEX 338, Example 4 shows ductile fracture.

[00157] As indicated by Examples 2-4 set forth in Table 10, the addition of rubber-containing modifiers to polymeric blends of aliphatic polyketones, ABS, and flame retardants as described herein has increased chemical resistance, flame retardancy, and polymer blends that exhibit sufficient impact strength.

[00158] It will be apparent that modifications and variations are possible without departing from the scope of the disclosure as defined in the appended claims. More specifically, while some aspects of the present disclosure are found herein to be preferred or particularly advantageous, it is contemplated that the present disclosure is not necessarily limited to these aspects.

[00159] It is alleged that:

Claims (30)

45 wt% or more and 90 wt% or less of an aliphatic polyketone;
7.5 wt% or more and 40 wt% or less of acrylonitrile butadiene styrene (ABS); and
A polymeric blend comprising greater than 0 wt% and less than or equal to 25 wt% flame retardant. 2. The polymer blend of claim 1, wherein the aliphatic polyketone has a melt flow rate greater than or equal to 1 g/10 min and less than or equal to 90 g/10 min as measured according to ASTM D1238 at 240° C. and a weight of 2.16 kg. 3. The polymer blend of claim 2, wherein the aliphatic polyketone has a melt flow rate greater than or equal to 1 g/10 min and less than or equal to 20 g/10 min as measured according to ASTM D1238 at 240°C and a weight of 2.16 kg. 3. The polymer blend of claim 2, wherein the aliphatic polyketone has a melt flow rate greater than or equal to 40 g/10 min and less than or equal to 90 g/10 min as measured according to ASTM D1238 at 240°C and a weight of 2.16 kg. 5. The polymer blend of any one of claims 1 to 4, wherein the polymer blend further comprises greater than 0 wt % and less than or equal to 1 wt % of a hydroxyapatite stabilizer. 6. The polymer blend of claim 5, wherein the hydroxyapatite stabilizer is pentacalcium hydroxide tris(orthophosphate), amorphous tricalcium hydroxyphosphate, calcium phosphate hydroxide, or a combination thereof. 7. The polymer blend according to any one of claims 1 to 6, wherein the polymer blend comprises at least 60 wt % and at most 80 wt % of an aliphatic polyketone. 8. The polymer blend of any one of claims 1 to 7, wherein the polymer blend comprises at least 20 wt % and at most 40 wt % ABS. 9. The polymer blend of any one of claims 1 to 8, wherein the polymer blend has a weight ratio of aliphatic polyketone to ABS of from 2:1 to 6:1. 10. The polymer blend of any one of claims 1 to 9, wherein the polymer blend comprises at least 2.5 wt % and at most 20 wt % flame retardant. 11. The method according to any one of claims 1 to 10, wherein the flame retardant is an inorganic phosphorus containing salt, phosphinate, organic phosphinate, phosphate compound, polyphosphate, polyphosphonate, halogenated aromatic, polymeric halogenated compound , antimony trioxide, or a polymer blend comprising a combination thereof. 12. The polymer blend according to any one of claims 1 to 11, wherein the polymer blend has a heat deflection temperature greater than or equal to 100°C as measured according to ASTM D648 at a load of 0.45 MPa. 13. The polymer blend according to any one of claims 1 to 12, wherein the polymer blend has a tensile modulus of at least 1600 MPa as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s. 14. The polymer blend of any one of claims 1 to 13, wherein the polymer blend has a tensile strength at yield of at least 35 MPa as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s. 15. The polymer blend of any one of claims 1 to 14, wherein the polymer blend has a tensile strength at break of at least 35 MPa as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s. 16. The polymer blend of any one of claims 1 to 15, wherein the polymer blend has a flexural modulus of at least 1900 MPa as measured according to ASTM D790 at 23°C and a strain of 0.21 mm/s. 17. The polymer blend of any one of claims 1 to 16, wherein the polymer blend has a flexural strength of at least 50 MPa as measured according to ASTM D790 at 23°C and a strain of 0.21 mm/s. 13. The method of any one of claims 1 to 12, wherein the polymer blend has a tensile modulus of at least 1600 MPa as measured according to ASTM D638 at 23°C and a strain of 0.85 mm/s, ASTM at a strain of 23°C and 0.85 mm/s. Tensile strength at yield of at least 35 MPa when measured according to D638, tensile strength at break of at least 35 MPa when measured according to ASTM D638 at 23°C and strain of 0.85 mm/s, at strain of 23°C and 0.21 mm/s, at break according to ASTM D790 A polymer blend having a flexural modulus of at least 1900 MPa when measured and a flexural strength of at least 50 MPa as measured according to ASTM D790 at 23° C. and a strain of 0.21 mm/s. 19. The polymer blend according to any one of claims 1 to 18, wherein the polymer blend has a flammability rating of V-0 at a thickness of 3 mm as measured according to UL 94. 19. The polymer blend according to any one of claims 1 to 18, wherein the polymer blend has a flammability rating of V-1 at a thickness of 1.5 mm as measured according to UL 94. 19. The polymer blend according to any one of claims 1 to 18, wherein the polymer blend has a flammability rating of V-0 at a thickness of 1.5 mm as measured according to UL 94. 19. The polymer blend according to any one of claims 1 to 18, wherein the polymer blend has a flammability rating of V-1 at a thickness of 0.75 mm as measured according to UL 94. 19. The polymer blend according to any one of claims 1 to 18, wherein the polymer blend has a flammability rating of 5VA at a thickness of 3 mm as measured according to UL 94. 19. The polymer blend according to any one of claims 1 to 18, wherein the polymer blend has a flammability rating of 5VA at a thickness of 1.5 mm as measured according to UL 94. 25. The polymer blend of any one of claims 1-24, wherein the polymer blend further comprises greater than 0 wt % and less than or equal to 20 wt % of a rubber-containing impact modifier. 26. The polymer blend of claim 25, wherein the rubber-containing impact modifier comprises another ABS, methyl methacrylate butadiene styrene (MBS), acrylonitrile styrene acrylate (ASA), or a combination thereof. 27. The polymer blend of claims 25 or 26, wherein the polymer blend has a Notched Izod Impact strength of at least 200 J/m. 28. The polymer blend of any one of claims 25 to 27, wherein the polymer blend has a peak energy of at least 30 J as measured according to ASTM D3763. 29. The polymer blend of any one of claims 1-28, wherein the polymer blend further comprises greater than 0 wt% and less than or equal to 5 wt% compatibilizer. 30. The polymer blend of claim 29, wherein the compatibilizing agent comprises styrene maleic anhydride (SMA), aromatic polyketone, maleated-ABS, polystyrene sulfonate, an acrylic copolymer, or a combination thereof.

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